Enteric pythiosis with bacterial complication in a mixed-breed dog

A 3-year-old male mixed-breed dog from Termas de Río Hondo, Argentina, presented with a one-month history of gastrointestinal signs, including hemorrhagic diarrhea, vomiting, abdominal pain, and initial fever, which were refractory to treatment. Upon admission to the veterinary service, the patient...

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Autores principales: Lazarte Monteros, Facundo Nahuel, Lobato Chálabe, Luz del Rosario, Ibáñez Picón, Ana Paula, Flores, Melisa, Valdez Jaén, Gonzalo, Lezcano, Franco Hugo
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste 2026
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Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/9219
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Sumario:A 3-year-old male mixed-breed dog from Termas de Río Hondo, Argentina, presented with a one-month history of gastrointestinal signs, including hemorrhagic diarrhea, vomiting, abdominal pain, and initial fever, which were refractory to treatment. Upon admission to the veterinary service, the patient showed 7% dehydration. Ultrasonographic examination revealed duodenal wall thickening and jejunal lymphadenomegaly. Exploratory laparotomy confirmed severe intestinal lesions, and an enterectomy was performed with sample collection for histopathological examination, along with blood transfusion. Forty-eight hours after surgery, the patient developed ascites with a positive culture for Proteus mirabilis. Histopathology confirmed lesions compatible with enteric pythiosis caused by Pythium sp. The patient died within the next 24 hours. This case highlights the aggressiveness of enteric pythiosis and the importance of early diagnosis in endemic areas.